Programmable Wireless Door Ring Bell Wireless Doorbell Front And Back Door Usage

100m Wireless digital door chime 36 melody DC wireless door bell Waterproof IP 44 Wireless doorbell Features: Wireless battery operated doorbell system of 1 transmitter and 1 receiver. Both the Transmitter and Receiver are battery operated. Creative, waterproof design. Prevent rainwater infiltration which prolong service life. 36 chimes included: Pick one you like from modern to old fashioned chimes. Loud enough to hear at any of the 4 levels of volume and low enough so it